Stationary table for meat and bone saws



April 2s, 1959 I F. F. BRUCH 8 I STATIONARY TABLE. FOR MEAT AND BONESAWS Filed May 20, 1957 3 Sheets-Sheet l lll I.

l j INVENTOR: 2 FRANK F. BRUCH ATT'YS Apx ll 28 1959 F. EBRUCH v v 2,

' V STATIONARY TABLE. FOR MEAT AND BONE SAWS Filed May 2o, 1957 sSheets-Shget 2 FIGS FIG. 3

A ril 28, 1959 F. F. BRUCH 2,334,028

- STATIONARY TABLE FOR MEAT AND BONE SAWS Filed May 20, 1957 SSheetS-Sheet a ,4 25 I6 FIGG-V- r United STATIONARY TABLE FOR MEAT ANDBONE SAWS Application May'20, 1957, SerialNo. 660,284

4 Claims. (Cl. 143-132)v This invention relates to a meat and bone sawof the typegenerally disclosed in United'States Letters Patent No.2,492,824, issued December 27, 1949, to A. H. Ahrndt et a1., andassigned to the present assignee. More specifically, the inventionrelates to the mounting of a stationary table which is removable fromits support and has cooperating relationship with the usual slide table.

The invention consists of an elongated bar and a pair of lugs which arespaced from each other and laterally spaced from the bar, and havecooperating engagement to limit longitudinal, lateral and verticalmovement of the demountable stationary table on its support. A clampingmember is provided with an extension on a part of the table support forclamping one side (the front) of the table to'its lower supporting base.The far end of the table is provided with projections which are receivedin slots in a locking bar, and thus limit the movement of the table,whereupon the operation of a locking clamp will hold the removable tablein its normal stationary position.

The primary object of the present invention is the provision of new andimproved means for limiting the forward and shiftable movement of thetable, as well as lateral or longitudinal movement thereof, there beingimproved means for locking the table in its adjusted position.

Another important object of the invention resides in the provision of astationary member which cooperates with protruding lugs on the table andhas interfitting engagement therewith to guide front to rear movement ofthe table, there being blocks arranged on a part of the supporting frameof the table so as to insure the removable table being at the properheight.

A further object of the invention consists of lugs of a new and improveddesign to effect proper positioning of the table at the front sidethereof, and to insure that the table be at the proper elevation. A newand improved clamping element cooperates with at least one projection ona lug to lock the table in its adjusted position.

Still another object of the invention resides in a new and improvedclamping member for clamping the removable table in its adjustedposition and to maintain the table in its normal stationary position.

Numerous other objects and advantages will be apparent throughout theprogress of the specification which is to follow.

The accompanying drawings illustrate a certain selected embodiment ofthe invention, and the views therein are as follows:

Fig. l isa detail perspective view of a power-operated meat and bonesawand embodying the invention;

Fig. 2 is adetail perspective view, on an enlarged scale, showing. theimproved stationary table of the invention, parts being broken away forthe sake of clearness;

Fig. 3 is a transverse sectional view on the line 3-3 of Fig. 2, theview being on a scale larger than that disclosed in Fig. 2;

Fig. 4 is a detail perspective view of the locking arm of the clamp;

Fig. 5 is a detail transverse sectional view on the line 5-5 of Fig. 2;

Fig. 6 is a detail perspective view showing the closure top locatedabove the lower cabinet and supporting the demountable table; and

Fig. 7 is a bottom plan view'of the stationary, but

demountable, table.

The particular meat and bone saw herein shown for the purpose ofillustrating the invention comprises a main machine frame 1, Figs. 1 and2, having a lower cabinet 2 which is closed by enclosing side walls anda closure top 3. An upstanding vertical column or hood 4 extendsupwardly from the top closure 3, and terminates at its upper end in ahousing 5 which supports an upper saw pulley (not shown) over which anendless saw 6 is trained, Figs. 1 and 2. The saw 6 is driven by apower-driven saw pulley (not shown) arranged in the lower cabinet 2.

A slide table 7, Figs. 1 and 2, is arranged at the front of the machineand is mounted on spaced rails 8, 8 which are fixed to a forwardprojecting part 9 of the machine frame 1. The slide table 7 is mountedfor slidable movement in a rectilinear path and has its inner edge 10,Fig. 1, lying immediately adjacent and close to the inner edge of anormally stationary, but demountable, table 11.

The stationary table 11 is cut away, as at 12, Figs.

1, 2 and 7, to accommodate a saw guide 13 and fiber block 14, Figs. 1and 2. The table 11 is also cut away as at 15, Figs. 1, 2 and 7, to makeprovision for the column or hood 4. The table 11 is adapted to bemounted removably on top of the top closure 3 of the cabinet 2, therebeing means provided for guiding the table 11 so that it will bepositioned properly with respect to the slide table 7. The means forguiding the table 11 insures it being positioned longitudinally, andlaterally, as well as being at the proper elevation. Means, on theclosure top 3 cooperating with the underside of the table 11, areprovided to effect proper registration between both said latter members,as well as insuring proper positioning of the table ill with respect tothe slide table 7.

The stationary table 11, which can be removed for various purposes,particularly for cleaning and repair, has spaced longitudinal channels16 and 17, Figs. 2 and 7, welded or otherwise secured to the undersideof the table 11. Blocks or spacers 18 and 19, Figs. 3, 5 and 7, underliethe channel irons 1'6 and 17 and are welded to the bottoms of thechannels to bring the top of the table 11 to the proper elevation and inthe same plane as the top of the slide table 7.

Side members 29 and 21, Figs. 2 and 7, are welded to the underside ofthe table 11 and to the ends of the channels 16 and 17. The side members20 and 21, which are in the form of angle irons, extend transversely ofthe channels 16 and 17. The rear ends of the blocks or spacers 18 of thechannel 16 are provided with projections 22 which extend a predetermineddistance beyond the rear guiding edge 23 of the channel 16. The lowerrear ends of the projections 22 of the blocks or spacers 18 are slopedor beveled at their upper ends, as indicated at 24, Fig. 3. Theprojecting ends 22 are adapted to have interfitting engagement with alocking bar 25 which is adjustably fastened on top of the closure top 3of the cabinet 2. The locking bar 25 may comprise a solid bar, polygonalin cross section, and has milled slots 26' and 27, Fig. 6, at itsbottom, near its outer ends, to cooperate with each projecting end 22 ofthe blocks 18. The forward longitudinal side 28 of the locking bar 25acts as a anemone guiding edge which cooperates with the guiding edge 23of the channel so that the two members will be in proper front to rearposition when they are brought to contacting relation. The slots 26 and27 receive the projections 22, the beveled or sloping bottom edges 24 ofthe projections 22 making it easy to slide the projections 22 in theslots 26 and 27 at the bottom of the bar 25. The bar 25 is fastened tothe closure top 3 by means of setscrews 29 passing through elongated orotherwise enlarged holes formed in the bar and screw threaded into thetop closure 3, Figs. 3 and 6.

Guide lugs 30 and 31, Figs. 5 and 6, are secured to the top of thecabinet top closure 3 and are adapted to contact a front or guiding edge32 of the channel 17. The upper, forward edges of the guide lugs 30 and31 are beveled or sloped at their upper edges, as indicated at 33, topermit ease in fitting the channel 17 in position with respect to thelocking bar 25. The guide edge 23 of the channel 16 will contact theguiding edge or face 28 of the locking bar 25, and the guiding surfaces34 and 35, respectively, of the lugs 30 and 31 will contact the guideedge 32 of the channel 17, Figs. 2, 6 and 7. The lower inclining orsloping surface 24, Fig. 3, of the blocks or spacers 18 make it easy forthe projections 22 to be slid in position in the slots 26 and 27 of thebar 25, and the inclines or slopes 33 on the lugs 30 and 31 make it easyfor the channel 17 to be dropped in position against the channel 17. Thelugs 30 and 31 may be secured to the top closure 3 in any convenientmanner, such as by setscrews 36, Fig. 5, passing through elongated orenlarged holes in the base of the guide lugs 3t) and 31, and thenscrewed in position to the top closure 3. The bar 25 and the lugs 33 and31 have adjustment front to rear and side to side by reason of thesetscrews 36, 36 engaging their respective elongated or enlarged slots.The sideways adjustment of the table with respect to the bar 25 islimited as the bar 25 is solid on each side of the slots 26 and 27. Theouter ends of the material of the bar at the outer ends of the slots andthe bar being solid between the inner ends of the slots, guide the tablesideways. Adjustment is provided lengthwise of the bar, as well as frontto rear, by the enlarged holes into which fit the smaller shanks of thesetscrews. The lugs 30 and 31 also permit side to side and front to rearadjustment. The blocks or spacers 18 and 19 determine the properelevation. When the parts are once in adjusted position, the table 11will always be in position to always be replaced at the same identicallocation. The locking bar 25 prevents the table 11 from moving upwardlywith respect to the top closure 3 at the rear end of the table 11because the bar covers the slots 26 and 27, and the top of theprojections 22 engages the underside of the bar material at the slots 26and 27. Means are provided for locking the front or forward end of thetable 11 with respect to the top closure 3.

The means for locking the forward end of the table in rigid positioncomprises a clamp which has a locking arm 37 which is rotatively mountedon top of the closure 3 by means of a setscrew 38 having an operatingknob 39. The underside of the arm 37 is cut away to provide a recess 40at its free end, thus providing an overhanging part or lip 41 which isadapted to engage with a lock bar or projection 42 secured to theunderside of the channel 17, intermediate the ends of the channel 17 andprojecting outwardly therefrom. The locking arm 37 is freely mounted onthe shaft 38, Fig. 6, and is adapted to be swung inwardly so as to causethe lip 41 to extend over the top of the locking projection 42. Theunderside of the lock ing arm 37 is arcuate, as indicated at 43, topermit ease in applying the locking arm 37 in position over its cooperating locking projection 42, the arcuate surface 43 acting as a cam toassist in forcing the table to its guided position, and to prevent thetable 11 from being raised upwardly. The setscrew 38 is located near oneextreme end of the locking arm 37 to provide a slight inclined Q1;

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wedged space between the underside of the clamping arm 37 and the top ofthe closure 3, as shown in Fig. 3, to bind tightly the end 44 of thelocking finger against the top 3 when the knob 39 is screwed to lockedposition.

The saw guide 13 and its cooperating fiber block 14 are adapted to bescrewedto the front of an angle iron 45 which is secured to the 'top ofthe closure 3, the angle iron 45 being shown in phantom, Fig. 6.

The closure top 3 is provided with an elongated slot 46 to permit anendless saw 6 to be applied over the saw pulleys (not shown).

The top 11 is mounted in place by first placing the table in inclinedposition with its rearward end downward and its forward end upward sothat the beveled projecting ends 24 of the projections 22 will fit intothe slots 25 and 26 and the guiding edge 23 against the guide edge 28 ofthe bar 25. The forward end of the table is then moved downwardlybetween the channels 16 and 17 to bring the guide edge 32 of the channel17 against the guiding edges 34 and 35 of the lugs 30 and 31, whereuponthe table 11 is positioned in place. The arm 37 is then turned to bringthe locked part 41 over the projection 42 to its locked position, asshown in Fig. 3. The knob 39 is tightened, whereupon the overhanging end41 of the arm 37 overlies the projecting end of the lug 42. The table11, therefore, is locked into proper guided position with respect to thecooperating slide table 7 and in the same plane therewith.

The invention provides an extremely economical arrangement for guidingthe table with respect to its support, as well as maintaining the tableat the proper elevation so that it will always lie in the samehorizontal plane as the slide table 7.

The guiding, supporting and locking means are relatively simple; theymay be arranged easily in position, and have proper front to rearadjustment along its inner edge to lie closely with the cooperatingouter edge of the slide table. The entire table 11 may be removed forcleaning and other purposes by merely operating one element (the knob39) to release the locking arm 37 from its cooperating projecting end42, whereupon the entire table 11 may be lifted bodily from the top 3 ofthe cabinet 2.

Changes may be made in the form, construction and arrangement of theparts without departing from the spirit of the invention or sacrificingany of its advantages, and the right is hereby reserved to make all suchchanges as fall fairly within the scope of the following claims.

The invention is hereby claimed as follows:

1. A meat and bone saw comprising a frame, a normally stationary tabledemountable on said frame, a slide table slidable in a rectilinear patharranged adjacent the stationary table, a longitudinally extendingsupporting member fixed to the underside of said stationary table at thefront thereof and having a rear guiding surface, blocks secured to theunderside of said supporting member and adapted to rest on the frame tobring the stationary table to the same level as the slide table,projections on some of said blocks extending forwardly, a locking barsecured at the forward end of the frame and having a guiding surface forengagement with the guiding surface on the supporting member, saidlocking bar having slots and adjustably mounted in a horizontal plane ontop of said frame, some of said projections being adapted to be receivedin said slots, spaced apart lugs adjustably mounted for limiting backand forth movement of the stationary table on the top of said frame atthe front thereof and spaced forwardly of the locking bar, a secondlongitudinal member spaced at the rear of the stationary table beneaththe top and having a guiding edge for contacting engagement with theforward surfaces of the lugs, a projection on the forward end of thesecond longitudinal member, and locking means engageable with the lastnamed projection to lock the rearward end of the stationary table tothe. frame and to force. said. guiding surfaces. against each other andto hold the projections into the slots in the bar.

2. A meat and bone saw comprising a frame, a normally stationary tabledemountable on said frame, a slide table slidable in a rectilinear patharranged adjacent the stationary table, a longitudinally extendingsupporting member fixed to the underside of said stationary table andhaving a guiding surface, blocks secured to the underside of saidsupporting member and adapted to rest on the frame to bring thestationary table to the same level as the slide table, projections onsome of said blocks, a locking bar secured at one end of the frame andhaving a guiding surface for engagement with the guiding surface on thesupporting member, said locking bar having slots and adjustably mountedin a horizontal plane on top of said frame, some of said projectionsbeing adapted to be received in said slots, spaced apart lugs adjustablymounted for limiting back and forth movement of the stationary table onthe top of said frame, a second longitudinal member spaced beneath thestationary table top and having a guiding edge for contacting engagementwith the surfaces of the lugs, a projection on the second longitudinalmember, and locking means engageable with the last named projection tolock the stationary table to the frame and to force said guidingsurfaces against each other and to hold the projections into the slotsin the bar.

3. A meat and bone saw comprising a frame, a normally stationary tabledemountable on said frame, a slide table slidable in a rectilinear patharranged adjacent the stationary table, a longitudinally extendingsupporting member fixed to the underside of said stationary table at thefront thereof and having a rear guiding surface, blocks secured to theunderside of said supporting member and adapted to rest on the frame tobring the stationary table to the same level as the slide table,projections on some of said blocks extending forwardly, a locking barsecured at the forward end of the frame and having a guiding surface forengagement with the guiding surface on the supporting member, saidlocking bar having slots and adjustably mounted in a horizontal plane ontop of said frame, some of said projections being adapted to be receivedin said slots, spaced apart lugs adjustably mounted for limiting backand forth movement of the stationary table on the top of said frame atthe front thereof and spaced forwardly of the locking bar, a secondlongitudinal member spaced at the rear of the stationary table beneaththe top and having a guiding edge for contacting engagement with theforward surfaces of the lugs, a projection on the rearward end of thesecond longitudinal member, locking means engageable with the last namedprojection to lock the rearward end of the stationary table to the frameat the rearward side thereof and to force said guiding surfaces againsteach other and to hold the projections into the slots in the bar, saidlocking bar being adjustable by providing enlarged openings therein andfastening means passing through the enlarged openings and threaded intothe frame for permitting front to rear and side to side adjustment ofthe locking bar, and said lugs having enlarged openings and lockingmeans in said latter opening and secured to the stationary table top forpermitting front to rear and side to side adjustable movement.

4. A meat and bone saw comprising a frame, a normally stationary tabledemountable on said frame, a slide table slidable in a rectilinear patharranged adjacent the stationary table, a longitudinally extendingsupporting member fixed to the underside of said stationary table at thefront thereof and having a rear guiding surface, blocks secured to theunderside of said supporting member and adapted to rest on the frame tobring the stationary table to the. same level as the slide table,projections on some of said blocks extending forwardly, a locking barsecured at the forward end of the frame and having-a guiding surface forengagement with the guiding surface on the sup porting member, saidlocking bar having slots and adjustably mounted in a horizontal plane ontop of said frame, some of said projections being adapted to be receivedin said slots, spaced apart lugs adjustably mounted for limiting backand forth movement of the stationary table on the top of said frame atthe front thereof and spaced forwardly of the locking bar, a secondlongitudinal member spaced at the rear of the stationary table beneaththe top and having a guiding edge for contacting engagementtwith theforward surfaces of the lugs, a projection on the rearward end of thesecond longitudinal member, and locking means engageable with the lastnamed projection to lock the rearward end of the stationary table to theframe at the rearward side thereof and to force said guiding surfacesagainst each other and to hold the projections into the slots in thebar, said last named locking means comprising a pivotally mounted memberundercut at its bottom and engageable with a projection on one of thelongitudinal bars to lock the stationary table top to the frame and toprevent vertical, lateral or longitudinal shiftable movement of thestationary table with respect to the frame.

References Cited in the file of thispatent UNITED STATES PATENTS2,317,568 Wallace et al. Apr. 27, 1943 2,435,765 Anderson Feb. 10, 19482,492,824 Ahrndt et al. Dec. 27, 1949 2,585,957 Meeker et al. Feb. 19,1952 2,814,318 Brown Nov. 26, 1957

